OB 52, 53 Study guide Flashcards
- Caudal regression syndrome, found in patients with what?
Diabetes
- What term defines the appearance of overlapping skull bones indicate fetal death?
spaldings sign
- What would fetal hydrops appear like under ultrasound, sonographic findings?
scalp edema, plueral effusion, percardial effusion, ascites, polyhydraminos, and thickened placenta
- If hydrops is cause by tachycardia, what is the fetal heart rate?
over 170 beats per minute
200-240 BPM
- If a pregnant woman has a baby, patient of size, what increase incidence is there?
Neural tube defects
- What is caudal regression syndrome?
Lack of development of the caudal spine and cord that may occur in the fetus of a diabetic mother
- Skeletal and central nervous system anomalies in infants of diabetes mother including all of the following?
neural tube defects
anencephaly
caudal regression syndrome
- When is it considered premature labor?
Onset of labor before 37 weeks
- Monochorionic twins, which will develop without a heart or upper body?
Acardica twin
- Which one of the following statements about twin to twin transfusion is true?
the arterial blood of the one twin is pumped into the venous system of the other twin
- What is poly-oli sequence?
Poly in one of the twins sac and oligo (small twin) in the other twins sac
- What is another name for poly-oli sequence?
stuck-twin syndrome
- Development of conjoined twins occurs how many days after conception?
13 days
- Stuck twin syndrome is usually observed in what weeks?
16-26 weeks
- Dia-dia, demonstrates what sonographic findings?
two gestational sac and two placentas
- Which one of the following is demonstration of one fertilized egg occurs 4-8 days after fertilization?
one chorion and two amnions
- Predictors of discordant in the growth of twins?
a difference in fetal weight greater than 20%
a difference in abdominal circumference of 20 mm or greater
a difference in femur length of 5 mm or greater
- Most frequency causes of nonimmune hydrops?
Cardiovascular lesions
- What are the advantages of chorionic villa samplings?
it is preformed in the first trimester
the results on available in 1 week
early result allow for more options for the parents
- Cordocentesis is more commonly used for what procedure?
chromosomes are analyzed
guidance for transfusion to treat isoimuniztion